At a glance
- Relation
- Specify the reference point
- Lines
- Broken yin; unbroken yang
Definition and terminology
The vocabulary developed from spatial contrasts such as sunny and shaded sides into descriptions of activity, stillness and seasonal change. The Xici connects alternating polarity with the Way. These are relational categories rather than two separate substances or a permanent classification of morally good and bad things.
Structure and rules
Divinatory systems often assign odd numbers, yang stems and unbroken lines to yang, and their counterparts to yin. Such assignments operate within a named system. Later accounts emphasize dependence, waxing and waning, and transformation. They describe a conceptual framework, not a measurable equation for physical energy.
Worked reading
A day offers a harmless example: daylight is yang relative to night, while morning can describe a growing phase relative to midday. A study schedule may use activity and rest as a polarity. This illustrates changing reference points; it does not establish a fixed personality or predict events.
Context and limits
The concepts occur in several traditions with differing associations. Historical texts also correlated polarity with gender and political hierarchy. Those statements reveal historical values and require critical reading rather than endorsement. A text documents how people classified the world; that alone cannot demonstrate predictive accuracy or a biological mechanism.
References & further reading
Historical sources document ideas and rules of their time, not empirical proof of predictive accuracy. Source notes identify the nature and scope of each reference.
- 《易传·系辞上》Primary / tradition source
Public-domain commentary; traditional accounts of polarity, taiji, images and stalk divination; traditional attribution is not settled authorship.